Steady Rest, When You Need One And What To Look For
LNS North AmericaEd Peter
National Product Manager – Work Holding Systems
Steady Rest, When You Need One And What To Look For
What is a Steady Rest
A Steady Rest is a Workholding Device generally consisting of 3 rollers that close inorder to engage and clamp a round diameter on a workpiece to provide support.
Steady Rest, When You Need One And What To Look For
When the inherent strength of a work piece is not sufficient to resist the force of the cutting tool usually to support long rods or shafts.
To support the end of a work piece without a tailstock engaged. Usually to allow for 2nd Operation end machining to be completed on the work piece. These operations may include facing , ID drilling or boring and possibly adding a bolt hole pattern on the end of the work piece.
When is a Steady Rest Required?
Steady Rest, When You Need One And What To Look For
Common Parts Requiring a Steady Rest
• Axle Shafts• Camshafts• Crankshafts• Gun Barrels• Cylinder Tubes• Pipe Casings• Piston Rods• Printing Rolls• Shock Absorber Tubes• Parts Requiring Secondary Operations
Steady Rest, When You Need One And What To Look For
• Increased rigidity for quicker metal removal. • Improved part tolerances• Improved part finish• Increased tool life• Improved operator safety
What are the associated benefits of using a steady rest?
Steady Rest, When You Need One And What To Look For
SLU, SLUX Steady Rests– Multi Purpose for Standard Applications– Manual or Automatic Lubrication (“M” vs “Z”)– Side Cylinder “B” Models Available for Clearance
What types of Steady Rests are available?
Steady Rest, When You Need One And What To Look For
SLU Style Steady Rest
Model CapacitySLU-1 4mm-64mm (.16”-2.58)SLU-2 8mm-101mm (.32” 3.98”)SLU-3 12mm-152mm (.47”-5.98”)
SLU-3.1 20mm-165mm (.78”-6.50”)SLU-3.2 50mm-200mm (1.97”-7.88”)SLU-4 30mm-245mm (1.19”-9.65”)SLU-5 45mm-310mm (1.77”-12.20”)
SLU-5.1 85mm-350mm (3.35”-13.78”)SLU-6 125mm-460mm (4.92”-18.11”)
Steady Rest, When You Need One And What To Look For
SLU Steady Rests– Multi Purpose for Standard Applications– Manual or Automatic Lubrication (“M” vs “Z”)– Side Cylinder “B” Models Available for Clearance
SR Premium Steady Rests– Same Mounting Pattern and Capacity as the SLU series– Fully Sealed Body.– Coolant Wash Thru Coolant Guards at the 3 Rollers.– Hardened Arms for Greater Wear Resistance and Durability
What types of Steady Rests are available?
Steady Rest, When You Need One And What To Look For
SR Premium Style Steady Rest
Model CapacitySR-2 8mm-101mm (.32”-3.98”)SR-3 12mm-152mm (.47”-5.98”)
SR-3.1 20mm-165mm (.78”-6.50”)SR-3.2 50mm-200mm (1.97”-7.88”)SR-4 30mm-245mm (1.18”-9.65”)SR-5 45mm-310mm (1.77”-12.20”)
SR-5.1 85mm-350mm (3.35”-13.78”)SR-6 125mm-460mm (4.92”-18.11”)
Steady Rest, When You Need One And What To Look For
SR Premium Style Steady RestCoolant Flush thru the Arms and Chip Guards
Steady Rest, When You Need One And What To Look For
SLU Steady Rests– Multi Purpose for Standard Applications– Manual or Automatic Lubrication (“M” vs “Z”)– Side Cylinder “B” Models Available for Clearance
SR Premium Steady Rests– Same Mounting Pattern and Capacity as the SLU series– Fully Sealed Body– Coolant Wash Thru Coolant Guards at the 3 Rollers – Hardened Arms for Greater Wear Resistance and Durability
K Steady Rests– Compact Design to Allow Larger Diameter Clamping in Smaller Machine Envelopes.– Coolant Wash thru Coolant Guards at the 3 Rollers
What types of Steady Rests are available?
Steady Rest, When You Need One And What To Look For
K Style Steady Rest
Model CapacityK2-Z 25mm-180mm (.97”–7.08”)
K3-Z 65mm-235mm (2.56”-9.25)
K4-Z 60mm-280mm (2.36”-11.02”)
K4.1-Z 90mm-330mm (3.54”-12.99”)
K5-Z 80mm-390mm (3.15”-15.35”)
K5.1-Z 100mm-410mm (3.94”-16.14”)
K6-Z 135mm-460mm (5.31”-18.11”)
K6.1-Z 215mm-510mm (8.46”-20.08”)
Steady Rest, When You Need One And What To Look For
SLU Steady Rests– Multi Purpose for Standard Applications– Manual or Automatic Lubrication (“M” vs “Z”)– Side Cylinder “B” Models Available for Clearance
SR Premium Steady Rests– Same Mounting Pattern and Capacity as the SLU series– Fully Sealed Body– Coolant Wash Thru Coolant Guards at the 3 Rollers– Hardened Arms for Greater Wear Resistance and Durability
K Steady Rests– Compact Design to Allow Larger Diameter Clamping in Smaller Machine Envelopes.– Coolant Wash thru Coolant Guards at the 3 Rollers
KLU Steady Rests– Narrow Arm Steady Rest for use in grooves or short clamping diameters (Typically Camshafts and Crankshafts).– Coolant Wash thru Coolant Guards at the 3 Rollers
What types of Steady Rests are available?
Steady Rest, When You Need One And What To Look For
KLU Style Narrow Arm Steady Rest
Model Arm Width Capacity
KLU-215 15mm 20mm-101mm (.78”-3.98”)
KLU-218 18mm 20mm-101mm (.78”-3.98”)
KLU-222 22mm 20mm-101mm (.78”-3.98”)
KLU-318 18mm 30mm-180mm (1.18”-7.09”)
KLU-322 22mm 30mm-180mm (1.18”-7.09”)
KLU-419 19mm 30mm-245mm (1.18”-9.65”)
KLU-422 22mm 30mm-245mm (1.18”-9.65”)
KLU-429 29mm 30mm-245mm (1.18”-9.65”)
KLU-530 30mm 70mm-293mm (2.76”-11.54”)
KLU-540 40mm 70mm-293mm (2.76”-11.54”)
Steady Rest, When You Need One And What To Look For
RX Steady Rests– Ultra Compact Design to Allow Larger Diameter Clamping
in Smaller Machine Envelopes.– Coolant Wash thru Coolant Guards at the 3 Rollers– Premium Style to Include Sealed Body Construction
What types of Steady Rests are available?
Steady Rest, When You Need One And What To Look For
RX Steady Rests
Ultra Compact DesignInternal Cylinder
Model CapacityRX-3 20mm-270mm (.78”-10.63”)RX-4 35mm-340mm (1.38”-13.39”)RX-5 75mm-430mm (2.95”-16.93”)RX-6 100mm-520mm (3.94”-20.47”)
RX-6.1 250mm-685mm (9.84”-26.97”)
Steady Rest, When You Need One And What To Look For
Manual Steady Rests– C-Style Design– Large Clamping Ranges– Custom Designed to fit Machine and Application
What types of Steady Rests are available?
Steady Rest, When You Need One And What To Look For
Manual Steady Rests
• Pros• Lower Cost• Easier Installation• Designed to Maximize Machine Capacity• No Special Interface Required for most Applications
• Cons• Not Self Centering• Each Roller is Manually Adjusted by the Operator.• Operator Dependent• Less Predictable Results• No Ability to Automatically Lubricate Rollers
Steady Rest, When You Need One And What To Look For
Steady Rest Roller Bearing Styles
Cylindrical Bearing
Standard Support on Straight Diametersfor Fixed or Traveling Applications
Spherical Bearing
Support on Taper or Radiusfor Fixed or Traveling Applications
Max Taper = 5º / Side
Steady Rest, When You Need One And What To Look For
Spring Loaded Chip Guard
SLU & SLUX Steady Rest Option
Spring Loaded Guard with Brass Wiper That Remains in Contact with Work Piece for Better Chip Control
Steady Rest, When You Need One And What To Look For
• Steady Rest• Bracket• Base (manual or programmable)• Hydraulic Valve Package• Lubrication Package• Way Covers (Manual or Telescoping)• Hose Track• Interface to the Machine Tool (m-codes)• Professional Installation
What items may be necessary to mount an Automatic Steady Rest on a machine tool?
Steady Rest, When You Need One And What To Look For
Tailstock Ways Machining Center Table
Steady Rest Mounting Options
Lower Turret
Steady Rest, When You Need One And What To Look For
Bases
• Designs to fit Linear and Box Ways• Manual or Programmable Positioning• Automatic or Manual Tow Pin• In-Position Switches Available
• Designs for Base or Way Mounting• Steel Weldment Construction for Strength and Rigidity• Both Sides Machined for Right Side, Left or Tandem Mounting
Brackets
Steady Rest Bases and Brackets
Steady Rest, When You Need One And What To Look For
Valve Packages
• Hydraulic Solenoid Valves• Pressure Reducing Valves• Stainless Steel Braided Hoses• Quick Disconnect Fittings
• Fully Programmable Unit• Provides the Proper Lubrication for
Rollers and Internal Wear Surfaces• Low Level and Pressure Loss Alarm
Lubrication Units
Steady Rest, When You Need One And What To Look For
Telescoping Covers
• Provides Protection for Ball Screws and Linear Guide Ways
• Protects Hydraulic and Electrical Lines• Used Mainly for Automatic Base Applications
Hose Track
Steady Rest, When You Need One And What To Look For
• Always ensure the steady rest is properly aligned to the machine spindle centerline.
• Use proper type (ISO 46) and intervals of lubrication for the Steady Rest and rollers.
• Use the lowest hydraulic pressure that gives you desirable results.• Always turn the part prior to engaging the steady rest. Turn the steady rest band(s)
in an area where you can get a good round diameter free of chatter. You might need to start closer to the headstock or tailstock and work your way to the center of the part.
• Do not engage the Steady Rest on a part rotating at higher speeds as this can develop flat spots on the rollers.
• Always ensure the steady rest rollers and chip guards are in good working condition.
Tips and Tricks for getting the most from your Steady Rest!
Steady Rest, When You Need One And What To Look For
What is the Maximum Diameter to be Clamped? What is the Minimum Diameter to be Clamped? What is the Length of the Part(s)? Do you require more than 1 steady rest? Is this a Fixed or Traveling Steady Rest Application? How will the Steady Rest be Mounted in the Machine?
• Tailstock Way Mounted with Manual or Automatic Positioning• Turret Mounted with or without Indexing Capability
Will the Steady Rest Support a Straight and/or Tapered Part?• Cylindrical Bearings Preferred?• Spherical Bearings Preferred?
Manual Grease or Automatic Oil Lubrication Preference? Is the Steady Rest Interface available from the OEM?
• Needs to be Installed and Operational prior to Installation. What is the Delivery Requirement?
What Do You Need to Know to Incorporate a Steady Rest onto a Machine Tool?
Steady Rest, When You Need One And What To Look For
Steady Rests
Ed PeterNational Product Manager
Steady Rest and Workholding
513-388-5002
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